| 摘要 |
PURPOSE: A kickboard type bicycle is provided to facilitate keeping and freight by folding a handlebar, attaching and detaching a saddle, and not using a chain. CONSTITUTION: A handlebar folding unit unfolds a middle rod(5) backward, completely pushes a stem(2) into the middle connection rod, and stands the handlebar(1) vertically to the body. A pedal folding unit folds a pedal(55) upward. A pedal balance keeping unit maintains the pedal at fixed angles to a crank(40) with the power of the spring. A saddle detachable unit is attached and detached according to need. A driving unit moves a pedal vertically and drives a back wheel(49).
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